Even North Dakota Expects to Top 100

Dangerously hot weather will expand across much of the central US this weekend and into next week, pushing temperatures above 100 degrees Fahrenheit from Dallas to North Dakota with roughly 70 million people facing heat advisories. A heat dome, in which atmospheric conditions trap heat, will create sustained high temperatures and accumulating discomfort, the AP reports. Overnight low temperatures aren't expected to come down enough for people to have much chance to recover, allowing heat stress to build as the tough conditions linger, forecasters said. The high humidity will make it feel even worse.

A huge stretch of the country will endure the oppressive midsummer weather. It will stretch from the desert Southwest to the Gulf Coast, reaching up into the Midwest and Great Plains. Some records around the Denver area may be broken, forecasters said. Temperatures are expected to be 10 to 15 degrees above normal. "It looks like it is going to be pretty much stationary in that position as we go through the week," said Bob Oravec, a meteorologist with the National Weather Service. Places under a National Weather Service extreme heat warning included western Nebraska, where temperatures Saturday and Sunday were forecast to reach 108. Forecasters expect the Mid-Atlantic and Northeast to be spared the extreme heat, along with much of the Pacific Northwest.